Macedonians were people who lived in a place called Macedonia a long time ago. It was a really long time ago, like hundreds and hundreds of years ago, so we don't use that word anymore.
Macedonia was a place where people had their own language, their own traditions, and their own way of doing things. They were proud of where they came from and they felt like they were special because they lived in Macedonia.
But because it was so long ago, we don't really know much about the Macedonians anymore. People have different ideas about what they were like and what they did, but we can't really know for sure.
So while it's neat to learn about the Macedonians and what they did a long, long time ago, it's not a word we use to describe people today.